Home / 71,013.78-98,004.96-39,189.60

Finding the Fourth Proportional to 71,013.78, 98,004.96 and 39,189.60

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Solution

The fourth proportional to 71,013.78, 98,004.96 and 39,189.60 is: 54,084.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,013.78 : 98,004.96 = 39,189.60 : x
  2. Step 2: Convert to fraction form
    71,013.78/98,004.96 = 39,189.60/x
  3. Step 3: Cross multiply
    71,013.78x = 98,004.96 × 39,189.60
  4. Step 4: Simplify right side
    71,013.78x = 3,840,775,180.42
  5. Step 5: Solve for x
    x = 3,840,775,180.42/71,013.78
  6. Step 6: Final answer
    x = 54,084.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.